Looking on this website, you can be amazed of what can be done with a standard Elgg. Velocitychess is a place where you can play modern chess online, with players or with computers on various difficulty levels. Users can observe live games, or past games on the homepage without logging in.

We use instant two way server-browser communication to implement game mechanics. Website is optimized to support up to 3 million registered users (9000 logged in users, playing at once), all on a single server. Velocitychess is based on node.js, mustache, redis and PHP and uses our high-load technology. You can read more about high-load solutions we used at: